公开(公告)号：US08364893B2

公开(公告)日：2013-01-29

申请号：US12179942

申请日：2008-07-25

申请人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

发明人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

IPC分类号： G06F12/16

CPC分类号： G06F12/0804 ,  G06F12/0866 ,  G06F12/123

摘要： A RAID apparatus includes a plurality of recording devices, a first adaptor connected to a first interface which is connected to a high-level apparatus, a controller for controlling processing of data transmitted by the high-level apparatus, and a second adaptor that connects to a second interface connected to a plurality of recording devices. The controller has a first memory area in which said data are stored, a second memory area used for a write-back of the data in said plurality of recording devices, a write-back information control unit controlling a write-back type of data stored in the first memory area and a usage state of the second memory area, a write-back data determination unit for determination of data to be written-back based on the write-back information, and a write-back execution unit for executing a write-back of the data to be written back on the plurality of recording devices.

摘要翻译： RAID装置包括多个记录装置，连接到连接到高级装置的第一接口的第一适配器，用于控制由高级装置发送的数据的处理的控制器，以及连接到 连接到多个记录装置的第二接口。 控制器具有存储所述数据的第一存储区域，用于在所述多个记录装置中回写数据的第二存储区域，控制存储的数据的回写类型的回写信息控制单元 在所述第一存储器区域和所述第二存储区域的使用状态中，基于所述写回信息来确定要被写回的数据的写回数据确定单元，以及用于执行写入的写回执行单元 在要记录在多个记录装置上的数据的背面。

公开(公告)号：US20120011317A1

公开(公告)日：2012-01-12

申请号：US13095017

申请日：2011-04-27

申请人： Kazuhiko IKEUCHI ,  Hidejirou Daikokuya ,  Chikashi Maeda ,  Norihide Kubota

发明人： Kazuhiko IKEUCHI ,  Hidejirou Daikokuya ,  Chikashi Maeda ,  Norihide Kubota

IPC分类号： G06F12/16

CPC分类号： G06F3/0689 ,  G06F3/0613 ,  G06F3/0659

摘要： When executing a sequential process on a volume of disks constituting RAID, a disk array apparatus determines whether a process other than the sequential process is executed in a predetermined period. The disk array apparatus specifies a disk type when the execution determining unit determines that no process other than the sequential process is executed in the predetermined period. The disk array apparatus then determines a multiplicity according to the disk type and executes the sequential process with the determined multiplicity.

摘要翻译： 当对构成RAID的磁盘卷执行顺序处理时，磁盘阵列装置确定在预定周期内是否执行顺序处理以外的处理。 当执行确定单元确定在该预定时间段内不执行除顺序处理之外的处理时，磁盘阵列装置指定磁盘类型。 然后，磁盘阵列装置根据磁盘类型确定多重性，并以确定的多重性执行顺序处理。

公开(公告)号：US20110289273A1

公开(公告)日：2011-11-24

申请号：US13091924

申请日：2011-04-21

申请人： Kazuhiko Ikeuchi ,  Hidejirou Daikokuya ,  Chikashi Maeda ,  Norihide Kubota

发明人： Kazuhiko Ikeuchi ,  Hidejirou Daikokuya ,  Chikashi Maeda ,  Norihide Kubota

IPC分类号： G06F12/08

CPC分类号： G06F12/0868 ,  G06F3/0613 ,  G06F3/0632 ,  G06F3/0635 ,  G06F3/0685 ,  G06F3/0689 ,  G06F11/201 ,  G06F2212/261

摘要： A disk array device includes, a cache memory, a plurality of types of disk drives of which data transfer capacity are different, redundant transmission paths that are data transfer paths between the cache memory and the disk drives, and a controller to divide the disk drives into two groups based on the data transfer capacity and allocate each of the two groups to each of the redundant transmission paths when the disk drives have three types.

摘要翻译： 磁盘阵列装置包括高速缓冲存储器，数据传输容量不同的多种类型的磁盘驱动器，作为高速缓冲存储器和磁盘驱动器之间的数据传送路径的冗余传输路径，以及用于划分磁盘驱动器的控制器 基于数据传输容量分为两组，当磁盘驱动器有三种类型时，将两组中的每一个分配给每个冗余传输路径。

公开(公告)号：US20090327801A1

公开(公告)日：2009-12-31

申请号：US12385585

申请日：2009-04-13

申请人： Chikashi Maeda ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

发明人： Chikashi Maeda ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

IPC分类号： G06F11/20

CPC分类号： G06F12/0866 ,  G06F11/1092 ,  G06F11/1662 ,  G06F11/2094 ,  G11B2220/415

摘要： In a disk array system, when a failure occurs in a disk unit under control, a disk controller performs a rebuild process for rebuilding data stored on the faulty disk unit on a spare disk unit (HS). When a rebuild control section accepts an I/O request from a host before completing the rebuild process in all target areas, the rebuild control section specifies a management unit area including a target area of the I/O request and determines whether the rebuild process is completed in the management unit area. If the rebuild process is not completed in the management unit area, the rebuild control section performs the rebuild process in the management unit area by a rebuild process section and rebuilds data on the HS. After that, an I/O request handling section handles the I/O request.

摘要翻译： 在磁盘阵列系统中，当在控制的磁盘单元中发生故障时，磁盘控制器执行用于重建存储在备用磁盘单元（HS）上的故障磁盘单元上的数据的重建过程。 当重建控制部分在完成所有目标区域内的重建过程之前接受来自主机的I / O请求时，重建控制部分指定包括I / O请求的目标区域的管理单元区域，并确定重建过程是否为 在管理单位区完成。 如果在管理单元区域中未完成重建过程，则重建控制部分通过重建处理部分在管理单元区域中执行重建处理，并在HS上重建数据。 之后，I / O请求处理部分处理I / O请求。

公开(公告)号：US07917802B2

公开(公告)日：2011-03-29

申请号：US11902772

申请日：2007-09-25

申请人： Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

发明人： Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

IPC分类号： G06F11/00

CPC分类号： G11B5/09 ,  G06F11/1612 ,  G11B20/1803 ,  G11B2220/415

摘要： A device adaptor that controls a disk, wherein a storage area is divided into a plurality of blocks, detects a block that includes a read error. Next, the device adaptor detects a write omission in blocks that are within a predetermined range from the block that includes the read error. To be specific, the device adaptor reads data from the blocks that are in the vicinity of the block that includes the unrecovered read error in a suspect disk. Next, the device adaptor reads from a redundant disk, data of a block that corresponds to the block that includes the unrecovered read error (data of block “B” in an example shown in FIG. 1) and compares the read data to the data read from the suspect disk to detect the write omission.

摘要翻译： 一种控制盘的设备适配器，其中存储区被分成多个块，检测包括读错误的块。 接下来，设备适配器检测到在来自包括读取错误的块的预定范围内的块中的写入省略。 具体来说，设备适配器从可疑磁盘中包含未恢复的读取错误的块附近的块读取数据。 接下来，设备适配器从冗余磁盘读取与包含未恢复的读取错误的块相对应的块的数据（在图1所示的示例中的块“B”的数据）），并将读取的数据与数据 从可疑磁盘读取以检测写入的遗漏。

公开(公告)号：US20070002482A1

公开(公告)日：2007-01-04

申请号：US11237662

申请日：2005-09-29

申请人： Hidejirou Daikokuya ,  Hideo Takahashi ,  Yoshihito Konta ,  Yasutake Sato ,  Hiroaki Sato ,  Norihide Kubota ,  Masami Ikeno ,  Tadashi Hirano ,  Tsuyoshi Nakagami ,  Yuuji Noda ,  Yusuke Inai ,  Naoyoshi Toshine ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Yukihiro Yoshiya ,  Nobuyuki Kikuchi ,  Masaru Shimmitsu ,  Eisaku Takahashi

发明人： Hidejirou Daikokuya ,  Hideo Takahashi ,  Yoshihito Konta ,  Yasutake Sato ,  Hiroaki Sato ,  Norihide Kubota ,  Masami Ikeno ,  Tadashi Hirano ,  Tsuyoshi Nakagami ,  Yuuji Noda ,  Yusuke Inai ,  Naoyoshi Toshine ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Yukihiro Yoshiya ,  Nobuyuki Kikuchi ,  Masaru Shimmitsu ,  Eisaku Takahashi

IPC分类号： G11B5/09

CPC分类号： G06F3/0659 ,  G06F3/0619 ,  G06F3/0623 ,  G06F3/0689 ,  G06F11/1435 ,  G06F11/1612 ,  G06F11/2056 ,  G11B20/1879 ,  G11B2020/183

摘要： In a storage system, a disk device performs recovery and transfers read data to a control device, and the control device judges the validity of the recovery to prevent a transfer of erroneous data. A control device read-accesses a disk device, and the disk device returns read data and a recovered read error response. A control device, at the time of an initial recovered read error, performs a retry of a similar command, and if an error does not occur for read commands including the retry read command, judges the data to be valid. Uncertain data (suspect data) upon occurrence of a recovered read error is restored through disk retry, and accurate read data can be transferred to the host.

摘要翻译： 在存储系统中，磁盘装置执行恢复并将读取数据传送到控制装置，并且控制装置判断恢复的有效性以防止错误数据的传送。 控制设备读取磁盘设备，并且磁盘设备返回读取数据和恢复的读取错误响应。 在初始恢复的读取错误时，控制装置执行类似的命令的重试，并且如果包括重试读取命令的读取命令不发生错误，则判断数据是有效的。 通过磁盘重试恢复出现恢复的读取错误时的不确定数据（可疑数据），并将准确的读取数据传输到主机。

公开(公告)号：US20060277451A1

公开(公告)日：2006-12-07

申请号：US11214941

申请日：2005-08-31

申请人： Norihide Kubota ,  Hideo Takahashi ,  Hiroaki Ochi ,  Yoshihito Konta ,  Yasutake Sato ,  Tsukasa Makino ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Shinya Mochizuki

发明人： Norihide Kubota ,  Hideo Takahashi ,  Hiroaki Ochi ,  Yoshihito Konta ,  Yasutake Sato ,  Tsukasa Makino ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Shinya Mochizuki

IPC分类号： G11C29/00

CPC分类号： G01R33/1207 ,  G06F11/2221 ,  G11B20/182 ,  G11B27/36

摘要： The present invention has been made to obtain a magnetic disk apparatus and the like capable of using a patrol region in the magnetic disk to detect a location in need of maintenance in hardware equipment around the magnetic disk in a separate manner from the disk itself and thereby avoiding useless replacement and operating the magnetic disk apparatus at low cost. In a preventive maintenance detection for a magnetic disk apparatus having a patrol function that uses a patrol region in the magnetic disk to determine the presence/absence of the need of preventive maintenance, a data pattern for detecting crosstalk in hardware equipment around the disk is generated, a write command or read command corresponding to the generated data pattern is executed, and the crosstalk is determined/detected based on the command execution result.

摘要翻译： 本发明是为了获得能够使用磁盘中的巡视区域的磁盘装置等，以与盘本身分开的方式检测在磁盘周围的硬件设备中需要维护的位置，从而 避免无用的更换和低成本地操作磁盘设备。 在具有巡视功能的磁盘装置的预防性维护检测中，使用磁盘中的巡视区域来确定是否有需要进行预防性维护，产生用于检测磁盘周围的硬件设备中的串扰的数据模式 执行对应于所生成的数据模式的写入命令或读取命令，并且基于命令执行结果确定/检测串扰。

公开(公告)号：US09015434B2

公开(公告)日：2015-04-21

申请号：US13586587

申请日：2012-08-15

申请人： Chikashi Maeda ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Takeshi Watanabe

发明人： Chikashi Maeda ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Takeshi Watanabe

IPC分类号： G06F12/00 ,  G06F9/50 ,  G06F11/10

CPC分类号： G06F9/50 ,  G06F11/1092 ,  G06F2209/5017

摘要： A rebuild control unit splits a rebuild process into partial processes and instructs an access processing unit to execute the partial processes. In the rebuild process, data identical to data recorded in a first storage device that constitutes RLU #1 is generated based on data read from, among storage devices constituting RLU #1, storage devices other than the first storage device and written to a spare storage device included in a storage system. Each partial process includes a combination of an operation of reading data from a split range created by splitting a data readout target range into fixed-size intervals and an operation of writing data in another storage device based on the data read from the split range. In response to the instruction from the rebuild control unit to execute the multiple partial processes, the access processing unit executes the instructed partial processes in parallel.

摘要翻译： 重建控制单元将重建过程分解为部分过程，并指示访问处理单元执行部分过程。 在重建处理中，基于从构成RLU＃1的存储装置之中读取的数据，生成与记录在构成RLU＃1的第一存储装置中的数据相同的数据，而不是第一存储装置的存储装置，并写入备用存储器 设备包括在存储系统中。 每个部分处理包括从通过将数据读出目标范围分割成固定大小间隔而创建的分割范围的数据的读取操作和基于从分割范围读取的数据在另一存储装置中写入数据的操作的组合。 响应于重建控制单元执行多个部分处理的指令，访问处理单元并行地执行指示的部分处理。

公开(公告)号：US08914577B2

公开(公告)日：2014-12-16

申请号：US12652873

申请日：2010-01-06

申请人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda

发明人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda

IPC分类号： G06F12/00 ,  G06F11/20 ,  G06F3/06

CPC分类号： G06F11/2094 ,  G06F3/0607 ,  G06F3/0632 ,  G06F3/0689

摘要： A disk array control apparatus controls a disk array having a redundant configuration with two or more disk devices and a spare disk provided for lack of redundancy in the disk array. And the disk array control apparatus includes a failure detecting unit for detecting the lack of redundancy in the disk array, and a rebuilding control unit for performing rebuilding processing on a dedicated spare disk device assigned to the disk array with the lack of redundancy, the dedicated spare disk being the spare disk dedicatedly assigned to the two or more disk arrays including the disk devices having a same characteristic as that of the spare disk.

摘要翻译： 磁盘阵列控制装置控制具有两个或多个磁盘装置的冗余配置的磁盘阵列和为磁盘阵列中缺少冗余而提供的备用磁盘。 并且，磁盘阵列控制装置包括用于检测磁盘阵列中的冗余性不足的故障检测单元，以及用于对缺少冗余分配给磁盘阵列的专用备用磁盘装置执行重建处理的重建控制单元， 备用磁盘是专用于分配给两个或多个磁盘阵列的备用磁盘，包括具有与备用磁盘相同特性的磁盘设备。

公开(公告)号：US08392752B2

公开(公告)日：2013-03-05

申请号：US12906238

申请日：2010-10-18

申请人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

发明人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

IPC分类号： G06F11/00

CPC分类号： G06F11/1076 ,  G06F11/108 ,  G06F2211/1057

摘要： A disk array provided with a RAID group in a Redundant Array of Inexpensive Disks (RAID) configuration with redundancy of two, the disk array includes, a data recovery technique selecting unit to select a technique for recovering data from a first failed disk to be recovered first, the technique being selected from among a plurality of techniques based on the type of storage apparatus included in the RAID group, and I/O conditions with respect to the RAID group, when failures occur in two storage apparatus in the RAID group, a data recovering unit to split recovered data from the first failed storage apparatus and writing the recovered data to two recovery storage apparatus in accordance with the data recovery technique selected by the data recovery technique selecting unit, and an aggregating unit to aggregate the recovered data onto one of the two recovery storage apparatus.

摘要翻译： 在具有冗余二的冗余磁盘冗余阵列（RAID）配置中提供有RAID组的磁盘阵列包括数据恢复技术选择单元，用于选择从第一故障磁盘恢复数据以恢复的技术 首先，当RAID组中的两个存储装置发生故障时，从基于包括在RAID组中的存储装置的类型的多种技术中选出的技术以及相对于RAID组的I / O条件， 数据恢复单元，用于从第一故障存储装置分离恢复的数据，并根据由数据恢复技术选择单元选择的数据恢复技术将恢复的数据写入两个恢复存储装置;以及聚合单元，将恢复的数据聚合到一个 的两个恢复存储装置。